/* ─── ルート：画面全体を使う ─── */
#editor_root {
    width: 100vw;
    height: calc(100vh - 60px);
    overflow: hidden;
    display: flex;
}

#editor_area {
    width: 100%;
    height: 100%;
    padding: 16px 32px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ─── 設定バー（上段・固定高さ） ─── */
#editor_settings {
    flex-shrink: 0;
    display: flex;
    gap: 20px;
    align-items: center;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 14px;
    padding: 8px 18px;
    box-shadow: 0 4px 16px rgba(67, 189, 173, 0.12);
}

.setting_label {
    font-size: 13px;
    font-weight: bold;
    color: #215c57;
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting_label input[type="text"] {
    width: 200px;
    padding: 5px 10px;
    border: 2px solid #88d9ce;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
}

.setting_label input[type="number"] {
    width: 72px;
    padding: 5px 10px;
    border: 2px solid #88d9ce;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
}

/* ─── メイン：グリッド（左）＋コントロール（右） ─── */
#editor_main {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: row;
    gap: 24px;
    align-items: flex-start;
}

/* ─── グリッド：高さ・幅どちらかが制約になる大きさで自動調整 ─── */
/*
 * 高さ制約: (100vh - 220px) / 17  ← header60 + settings48 + padding32 + gap10 + gridPad20 + border50
 * 幅制約:   (100vw - 610px) / 15  ← areaPad64 + gap24 + controls420(border-box) + gridPad20 + border46 + 36
 *   ※ controls は box-sizing:border-box で padding 込み 420px
 */
#editor_grid_wrap {
    flex-shrink: 0;
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    padding: 10px;
    box-shadow: 0 4px 20px rgba(67, 189, 173, 0.14);
    user-select: none;
}

#editor_grid {
    border-collapse: separate;
    border-spacing: 1px;
}

#editor_grid td {
    width:  min(calc((100vh - 220px) / 17), calc((100vw - 610px) / 15));
    height: min(calc((100vh - 220px) / 17), calc((100vw - 610px) / 15));
    padding: 0;
    border: 1px solid rgba(100, 200, 190, 0.3);
    cursor: crosshair;
    background-size: cover;
    background-repeat: no-repeat;
}

#editor_grid .field_img { background-image: url(/images/field.png); }
#editor_grid .wall_img  { background-image: url(/images/wall.png);  }
#editor_grid .hart_img  { background-image: url(/images/hart.png);  }
#editor_grid .cool_img  { background-image: url(/images/cool.png);  }
#editor_grid .hot_img   { background-image: url(/images/hot.png);   }

/* ─── コントロールパネル（右カラム・固定幅） ─── */
#editor_controls {
    width: 420px;
    flex-shrink: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 20px;
    padding: 18px;
    box-shadow: 0 4px 20px rgba(67, 189, 173, 0.12);
}

/* ─── ツールバー ─── */
#editor_toolbar {
    display: flex;
    gap: 6px;
}

.tool_btn {
    flex: 1;
    padding: 10px 0;
    font-size: 13px;
    font-weight: bold;
    color: #215c57;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid #88d9ce;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.tool_btn_active {
    background: linear-gradient(135deg, #4dcfd8, #2faea1);
    color: #fff;
    border-color: transparent;
}

/* ─── 対称モード ─── */
#editor_symmetry {
    display: flex;
    gap: 6px;
}

.sym_btn {
    flex: 1;
    padding: 9px 0;
    font-size: 13px;
    font-weight: bold;
    color: #215c57;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid #a8e6dc;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.sym_btn_active {
    background: linear-gradient(135deg, #2faea1, #1d8a80);
    color: #fff;
    border-color: transparent;
}

/* ─── ファイル操作バー ─── */
#editor_file_bar {
    display: flex;
    gap: 8px;
    align-items: center;
}

#btn_load {
    display: inline-block;
    padding: 9px 18px;
    background: linear-gradient(135deg, #88d9ce, #4dbfb8);
    color: #fff;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    font-size: 13px;
}

#btn_clear {
    padding: 9px 18px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid #88d9ce;
    border-radius: 10px;
    font-size: 13px;
    font-weight: bold;
    color: #215c57;
    cursor: pointer;
}

/* ─── フッター ─── */
#editor_footer {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: auto;
}

#btn_create {
    padding: 12px 24px;
    background: linear-gradient(135deg, #ff9a56, #ff7d45);
    color: #fff;
    font-size: 15px;
    font-weight: bold;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(255, 141, 96, 0.28);
}

#btn_download {
    padding: 12px 20px;
    background: linear-gradient(135deg, #4dcfd8, #2faea1);
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(67, 189, 173, 0.22);
}

#editor_status {
    font-size: 13px;
    font-weight: bold;
    min-height: 18px;
    color: #2faea1;
}